Semi-parabolic quantum well electrical conductivity B. I. Guliyev, S. R. Figarova, H. I. Huseynov and V. R. Figarov Eur. Phys. J. Plus, 134 6 (2019) 264 Published online: 14 June 2019 DOI: 10.1140/epjp/i2019-12609-y